We arrived at Tankat and asked a member of staff for a table for 2 and were told to wait which we did. 10 minutes later we asked another member of staff for a table and were again told to wait despite the restaurant being only about a third full. An Argentine couple then came in and took a table which no one challenged. A woman then came and led us to a table at the very back of the restaurant past empty tables to an area where no one was dining. At this point we decided to go elsewhere. There are far better restaurants in BA with helpful accommodating staff.